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OpenStudy (anonymous):
After arranging the terms in descending powers of a variable, select the opposite of the polynomial. 9 - 12n^2 + 4n^3 - 7n -4n^3 + 12n^2 + 7n - 9 4n^3 + 12n^2 + 7n + 9 -4n^3 - 12n^2 + 7n - 9
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OpenStudy (anonymous):
@phuong.tong
OpenStudy (anonymous):
a
OpenStudy (anonymous):
opposite means change its sign
OpenStudy (anonymous):
understand?
OpenStudy (anonymous):
thnx
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